Valve



Nw. 29, 1927. Y

L. P. UPHOFF ET AL VALVE' Filed Dec; Ysa. 1925 FIGURE 2 5 E R U G F\l 5L; 5 JQNHMJH GRM y@ l il ML! E Y Ri u m F INVENTOBS ATTORNEY titi TATESistria ma.

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.Application leii December 9, 1926. Serial No. 153,569.

Our invention relates particularly to a valve i'or use in connectionwith an interna combustion engine and rendered operative by theinhalation ot air into the engine cylinder and by the exhalation ot theair therefrom.

it one object ot the invention to provide a valve of the characterindicated that may be readily sul stituted for the spark plug in theengine cylinder.

Tt is another object of the invention to provide a valve of thecharacter indicated that will be simple in form and construction,economical to manufacture, ot tew Vand simple parte, positive in action,and highly eillicient in its practical application.

Tn the drawing:

Figure i is a longitudinal section through our improved valve andshowing in dotted lines a portion of the engine on which it is mounted;

Figure 2 is a sectional view on line 2-2 of Figure 1.

Figure 3 is a sectional view on line 3 3 of Figure 1. Referring now moreparticularly to the drawing, ve show at 1 a cylindrical housing dividedinto two chambers as 2 and 3 by a partition d provided with an orilice 5connecting` the two chambers.

@ne end oiE the cylinder is provided with a shoulder 6, and seated onthis shoulder 6 is a plate 7 provided with a shoulder 8. The plate issecurely mounted in position by rolling the edge ot the cylinder overthe edge of the plate 7 to engage the shoulder 8 as clearly shown inFigure 1. The plate 7 is provided with a plurality of annular Qrilices 9formed therein in. concentric 'relation to its axis as shown in Figure2, and with an axially arranged and outwardly extending threaded portionor tube 10 adapted to engage the 'threaded socket 11 in the enginecylinder 12.

Arranged in chamber 3 is a -cup member 13 having an orifice 14 formed inits bottom to communicate with the tube 10. This cup member 13 functionsas a valve and normally rests upon the plate 7 and closes the orifices9, but leaves an open communication between the chamber 3 and tube 10 atall times. The side wall 15 of the cup is in sliding engagement with thewall of the chamber, and a spring 16 is placed in the` cup to limit itsupward movement and insure its prompt return to its normal position.

The other end of the cylinder' is provided with a shoulder 1i', andseated on this shoulv vder is a plate 18 provided with a shoulder '19.The plate is securely held inposition by rolling the edge of thecylinder over the edge ofthe plate 18 to engage shoulder 19. The plate13 is provided with an axially ar ranged and outwardly extending tube 2Ocommunicating with the chamber 2 and adapted to receive one end oi ahose not shown. l

Arranged in chamber 2 is a cup member 21 having' a plurality or' smallorifices as 22 formed therein and arranged in a circle concentric to theaxis of the plate. This cup member 21 functions as a valve and normallyrests on the partition fl and closes olf the chamber 2 from the chamber3. The side wall 23 ot the cup is` in sliding engagement vwith the wallof the chamber, and a spring 24; is placed in the cup to limit itsupward movement and insure its prompt return to its normal posit-ion. n

This valve is particularly adapted for use in connection with a sprayingoutfit where a supply or' air under pressure is used through a nozzletor atomizing a paint or similar substance and depositing the same on adesired surface.

In its practical application the spark plug is removed from the enginecylinder and the threaded tube 10 of the device inserted in the socket11 vacated thereby. Now, when the piston moves outwardly in the cylinder 12 the suction caused thereby tends to create a vacuum in thechamber 3 and consequently the cup member or valve 21 is drawn down evenmore tightly on its seat but the cup or valve 13 is raised from its seatand air is drawn into the chamber through the orifices 9, the enginecylinder 12, tube 10 and chamber 3 being filled with air underat1nospheric pressure. Upon the inward stroke of the piston the airpressure in chamber 2 is immediately increased thereby forcing valve 13down more tightly upon its seat and raising the valve 21. The airpreviously drawn into the cylinder is now driven through chamber 2 andout through tube 20 to be used for the desired purpose, passing throughthe orilices 22 or any other passage that might be provided. p

Tt may now be seen thatwe have provided a device that is small andcompact that is economical to manufacture, that offers free passage ofthe air in both directions as described, that consists of few parts, isdurable,

and highly etlicient in its practical application.

It is to be understood, of course, that While We have herein shown anddescribed but one specific embodiment of our invention, changes in form,construction, and method of operation may be made Within the scope ofthe appended claims.

lVe claim :-d A valve comprising a hollow cylindrical body portionprovided with a transversely positioned partition intermediate its endsand having an orifice therein, an apertured plate mounted in one end ofthe body portion and provided with an axially extending tube adapted toengage a spark plug aperture in an internal combustion engine, a

LEO l. UPHOFF. FLOYD A. SIMS.

